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All results from a given calculation for C4H5N ((E)-2-Butenenitrile)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-210.068100
Energy at 298.15K-210.072524
Nuclear repulsion energy138.264686
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3197 3058 8.10      
2 A' 3189 3051 4.46      
3 A' 3149 3013 10.07      
4 A' 3050 2918 12.53      
5 A' 2354 2252 24.07      
6 A' 1726 1651 22.59      
7 A' 1507 1442 17.83      
8 A' 1433 1371 2.32      
9 A' 1342 1284 0.88      
10 A' 1322 1265 0.56      
11 A' 1146 1097 0.16      
12 A' 1057 1011 6.43      
13 A' 921 881 8.17      
14 A' 563 538 0.04      
15 A' 396 379 1.47      
16 A' 176 168 4.03      
17 A" 3109 2974 10.10      
18 A" 1498 1433 9.76      
19 A" 1074 1028 0.09      
20 A" 993 950 40.01      
21 A" 806 771 1.56      
22 A" 502 481 5.96      
23 A" 199 190 1.89      
24 A" 174 166 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 17441.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 16685.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3PW91/6-31G*
ABC
1.28329 0.07632 0.07301

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.660 0.414 0.000
H2 2.634 -1.131 0.880
H3 2.634 -1.131 -0.880
C4 2.248 -0.600 0.000
H5 0.261 -1.568 0.000
C6 0.757 -0.598 0.000
H7 0.453 1.500 0.000
C8 0.000 0.511 0.000
N9 -2.589 0.459 0.000
C10 -1.425 0.471 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77821.77821.09413.11112.15472.45972.66165.24944.0855
H21.77821.75911.09782.56822.14063.52963.22645.53094.4522
H31.77821.75911.09782.56822.14063.52963.22645.53094.4522
C41.09411.09781.09782.21021.49112.76302.50764.95223.8265
H53.11112.56822.56822.21021.08943.07392.09453.49752.6457
C62.15472.14062.14061.49111.08942.11991.34223.50942.4301
H72.45973.52963.52962.76303.07392.11991.08853.21582.1420
C82.66163.22643.22642.50762.09451.34221.08852.58991.4259
N95.24945.53095.53094.95223.49753.50943.21582.58991.1641
C104.08554.45224.45223.82652.64572.43012.14201.42591.1641

picture of (E)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H2 108.445 H1 C4 H3 108.445
H1 C4 C6 112.004 H2 C4 H3 106.489
H2 C4 C6 110.633 H3 C4 C6 110.633
C4 C6 H5 116.996 C4 C6 C8 124.432
H5 C6 C8 118.571 C6 C8 H7 121.059
C6 C8 C10 122.749 H7 C8 C10 116.192
C8 C10 N9 178.995
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.191     0.103
2 H 0.200     0.106
3 H 0.200     0.106
4 C -0.566     -0.289
5 H 0.195     0.110
6 C -0.080     0.095
7 H 0.207     0.234
8 C -0.182     -0.435
9 N -0.487     -0.452
10 C 0.323     0.421


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.608 -0.658 0.000 4.655
CHELPG        
AIM        
ESP 4.621 -0.645 0.000 4.666


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.664 0.879 0.000
y 0.879 -26.710 0.000
z 0.000 0.000 -30.323
Traceless
 xyz
x -9.148 0.879 0.000
y 0.879 7.283 0.000
z 0.000 0.000 1.865
Polar
3z2-r23.729
x2-y2-10.954
xy0.879
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 151.496
(<r2>)1/2 12.308